Coal-working apparatus.



N. D. LEVIN.

COAL WORKING APPARATUS.

APPLICATION FILED OCT. 1, 190s.

898,661. Patented Sept. 15, 1908. a asHBBTs-SHEBT 1.

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N. D.. LBVIN. GOAL WORKING APPARATUS.

APPLICATION FILED OOfl. 1, 1906.

Patented Sept. 15, 1908.

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INVENToR N. D. LEVIN.

COAL WORKING APPARATUS. T' APPLICATION FILED ocT.1, 1906.

NILS DAVID LEVIN, OF CHICAGO, ILLINOIS,

COAL-WORKING APPARATUS.

Specification of Letters Patent.

Patented sept. 15, 190s.

Application led October 1, 1906. Serial No.1336,952.

To allwhom rt'may conce-rn:

Be it known that I', NILs DAVID LEvIN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinols, have linvented certain new and useful Improvements in Coal-Working Apparatus,

-of-`which the following is a specification.

My invention relates to an apparatus for cutting and removing coal and has for its objects; to provide a mechanism whereby the coal may be undercut and broken in sections without blasting; to provide a mechanism wherebythe coal may be undercut and this undercut portion be broken up simultaneouslyT and the product removedfto the, rear without the necessity of manual operation; to provide a mechanism whereby the coal may be cut and carried to the cars and loaded without manual labor i and handling and wherein such removal takes place simultanevously with the cutting and does not interfere therewith; to provide a mechanism wherein the cutting and lremoving may be continued indefinitely in one direction without interruption; and to provide a mechanism which shall be simple and inexpensive in construction and which will materially reduce the cost of mining and removing the coal to the cars. These and other objects are accomlished by my improved construction one orm of which is shown in the accompanying drawings wherein,

. Figure 1 is a side elevation of the mechanism, and A Figure 2 is a plan view of such mechanism, the pick machine and the 'platform being removed.

Figure 3 is an enlarged side elevation of the mining machine, Y

Figure 4 is a plan view of the mining machine as slow in Figure 3, but with the pick supporting table removed, and

- Figure 5 is a partial longitudinal section through the motor which feeds the machine forward. A

Heretofore in the minin of coal it has been common to use an un ercutting device comprising aflexible carrying means locatedin substantially a horizontal plane and provided with picks whereby a considerable area of coal was first undercut and then subsequently broken down by means of blasts ona l1ne substantially parallel with the line of the undercutting. The coal was thus broken downin lar e masses and after the smoke and dust ha disappeared, a gang of laborers broke these masses of coal into small sections and removed them from the working chamber to the cars in the adjoininglpassage, after which a new undercut was made and the process continued las before. This method of operation has been objectionable in that the blasting is dangerous, considerable time must be .lost while the smoke is being carried away and the dust settled, the breakmgup of the large masses of coal and removing them from the working chambers by hand labor is expensive, and furthermore the undercutting mechanism has `to bef removed after each operation preliminary to the blasting and a further waste of time is necessi- `tated. My mechanism is designed to overcome these object-ions and to work continuously, undercutting the coal, breaking it down and conveying it to the rear. The mechanism consists primarily of the horizontal undercutting mechanism which has been used heretofore, with a'pick or punching machine mounted for universal movement upon the frame which carries the undercutting mechanism and a conveyer which operates intermediate the pick machine and the undercutting device and carries away the coal broken down bythe pick machine and t-ransfers it to the car which is placed to the rear of the machine. Since the coal is removed as it is broken down, it will be apparent that the be moved forwardly long distances until the body of coal is exhausted.

Referring now to the drawings, 1 is the frame of the machine which ismounted for movement :along the Hoor of the mine and which may be, if desired, provided with wheels for securing easy movement, 2 is the flexible undercutting means provided with picks 3 operated from the motor 4, 5 is the pick machine which will ordinarily be fluid operated and whichv is mounted upon the wheels 6 for movement on a platform 7 of the frame lf'and which is thus in effect universally'mounted,8 vis a motor cooperating with the screw 9 for feeding the frame back and forth, 10 is the anchoringmeans for securing :the motor in place inthe passage, 11 is a conveyer operated in the trough 12 above the undercutting. mechanism which conveyer is driven from the motoi 4and 13 is a secis shown in section in Figure 5, and as there shown 3S are the motor magnets secured to the frame, 39 is the armature and 40 is a feed screw socket secured to the armature and held from longitudinal movementJ by means of the nuts 41.

Refergrping again to the undercutting mechanism it will be noted that the flexible carrying means 2 passes over three idler pulleys 15 and about the drive pulley 16 (Figure 1,) which drive pulley 16 is keyed to the shaft carrying the spur gear 17, which is driven from the pinion 18 on the shaft of the motor 4, which is mounted upon the frame. The shaft which carries the gear 18 also carries upon its upper end the gear 19, which gear 19 drives the train of gearing 20 from which the shaft 21, carrying the drive sprockets 22 for the conveyer 11, is driven. The lower end of such conveyer passes around the idler sprocket 23. The conveyer 13 is driven from the shaft 24 by meansrof a chain connection 25 from the sprockets 26 on the shaft 24, to corresponding sprockets 27 on the shaft 21. The upper end of the conveyer frame 13 is provided with sprockets 28 which frame 13 is made with a notched holding means 29 forsecurely engaging the edge of the car 14. In order that the front end of the frame `1 with its cutter may be adjusted vertically, a pair of shoes 30 are provided, which shoes are pivoted to the frame at 31 and are movable by means of the screws 32 passing through the frame, which screws are provided with operating wheels 33. Provision is also ma'de for the lateral adjustment of the machine which provision consists in the shoes 34 pivoted to either side ofthe machine at the points 35 ment upon the frame above the undercutting mechanism.

2. In combination, a supporting frame, an undercutting mechanism mounted thereon, a motor for operating such mechanism, a pick machine mounted upon the frame above the undercutting mechanism, and means for adjusting the frame laterally.

3. In combination, a supporting frame, an undercutting mechanism mounted thereon, a motor for operating such mechanism, a pick machine mounted upon the frame above the undercutting mechanism, and means for adljlusting the frontend of the frame vertica y.

In testimony whereof, I have hereunto signed my name in the presence of the two subscribed Witnesses.

NILs DAVID LEv1N.`

Witnesses:

PAUL CARPENTER, JAMES NIcHoLAs LORENZ. 

